login

A197047 as a simple table

na(n)
11
21
31
42
57
62
73
820
920
103
115
1265
13120
1465
155
168
17203
18698
19698
20203
218
2213
23648
244080
257407
264080
27648
2813
2921
302057
3124074
3279785
3379785
3424074
352057
3621
3734
386527
39141856
40855746
411563352
42855746
43141856
446527
4534
4655
4720740
48833758
499248339
5031096170

[1,1,1,2,7,2,3,20,20,3,5,65,120,65,5,8,203,698,
 698,203,8,13,648,4080,7407,4080,648,13,21,2057,
 24074,79785,79785,24074,2057,21,34,6527,141856,
 855746,1563352,855746,141856,6527,34,55,20740,
 833758,9248339,31096170]